Ambien (zolpidem) is a sedative and is used for the short-term treatment of insomnia by helping you fall asleep. Includes Ambien side effects, interactions and. Ambien is the brand name for zolpidem, a drug that's used to treat insomnia. Insomnia is a sleep disorder that makes it difficult for you to go to sleep, stay asleep. Learn about Ambien (Zolpidem Tartrate) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications.